ary-ptrn-rest-ary-elem.js (1952B)
1 // This file was procedurally generated from the following sources: 2 // - src/dstr-binding/ary-ptrn-rest-ary-elem.case 3 // - src/dstr-binding/default/try.template 4 /*--- 5 description: Rest element containing an array BindingElementList pattern (try statement) 6 esid: sec-runtime-semantics-catchclauseevaluation 7 features: [destructuring-binding] 8 flags: [generated] 9 info: | 10 Catch : catch ( CatchParameter ) Block 11 12 [...] 13 5. Let status be the result of performing BindingInitialization for 14 CatchParameter passing thrownValue and catchEnv as arguments. 15 [...] 16 17 13.3.3.6 Runtime Semantics: IteratorBindingInitialization 18 19 BindingRestElement : ... BindingPattern 20 21 1. Let A be ArrayCreate(0). 22 [...] 23 3. Repeat 24 [...] 25 b. If iteratorRecord.[[done]] is true, then 26 i. Return the result of performing BindingInitialization of 27 BindingPattern with A and environment as the arguments. 28 [...] 29 30 13.3.3.6 Runtime Semantics: IteratorBindingInitialization 31 32 SingleNameBinding : BindingIdentifier Initializeropt 33 34 [...] 35 4. If iteratorRecord.[[done]] is false, then 36 a. Let next be IteratorStep(iteratorRecord.[[iterator]]). 37 b. If next is an abrupt completion, set iteratorRecord.[[done]] to true. 38 c. ReturnIfAbrupt(next). 39 d. If next is false, set iteratorRecord.[[done]] to true. 40 e. Else, 41 [...] 42 i. Let v be IteratorValue(next). 43 ii. If v is an abrupt completion, set 44 iteratorRecord.[[done]] to true. 45 iii. ReturnIfAbrupt(v). 46 5. If iteratorRecord.[[done]] is true, let v be undefined. 47 [...] 48 8. Return InitializeReferencedBinding(lhs, v). 49 ---*/ 50 51 var ranCatch = false; 52 53 try { 54 throw [3, 4, 5]; 55 } catch ([...[x, y, z]]) { 56 assert.sameValue(x, 3); 57 assert.sameValue(y, 4); 58 assert.sameValue(z, 5); 59 ranCatch = true; 60 } 61 62 assert(ranCatch, 'executed `catch` block'); 63 64 reportCompare(0, 0);